Generally alkaline metals (Group 1) such as lithium, sodium and potassium react with water and at the same time dissolve in it. During the reaction these alakaline metals form alkali solutions (litium hydroxide, sodium hydroxide) and releasing hydrogen gas. Apart from this calcium (belong to Group 2) too able to react and dissolve in water.
Sodium is a metal that reacts with water, releasing heat and hydrogen gas as it dissolves. The intense heat generated can lead to the sodium melting and even catching fire in the water.
The Alkali metals melt in water so: Rubidium is one example of a metal that melts in water.
iron
When a metal oxide reacts with an acid a slat and water are formed.
Copper sulfate dissolves in water, it does not react.
A corresponding metal salt and water are produced.
The reaction with sodium is that there starts to be fire on the water, so it acts violently. Sodium chloride dissolves in water, because it is salt (table salt).
Ice melts into water, wax melts into liquid, and metal expands when heated.
Sodium reacts violently with water, while sodium chloride (or table salt) dissolves in water.
When a metal oxide reacts with an acid a slat and water are formed.
Copper sulfate dissolves in water, it does not react.
When an alkali metal reacts with water, it produces an alkali metal hydroxide and hydrogen gas. This is a highly exothermic reaction, with the alkali metal displacing hydrogen from the water molecule.
potassium in the banana reacts to water and melts the banana
Lead is a moderately active metal. It dissolves slowly in water and in most cold acids. It reacts more rapidly with hot acids. It does not react with oxygen in the air readily and does not burn.
Metal hydroxide + hydrogen gas
copper
rust
Water
The reaction with sodium is that there starts to be fire on the water, so it acts violently. Sodium chloride dissolves in water, because it is salt (table salt).
Dissolving is not the same thing as melting. When you dissolve salt in water, for example, neither the salt nor the water melts. In the example of salt in water, salt is the solute and water is the solvent. The salt (which is the solute) is what dissolves (but does not melt).